*Valid September 30, 2024 - December 25, 2024 at Canadian stores and at indigo.ca, while quantities last, with $50.00 or more pre-tax purchase of eligible product(s), after discounts and plum points redemptions. Minimum purchase amount excludes gift cards, plum+ memberships, Love of Reading products/donations, and shipping costs. Selection may vary between stores and online.
The Theory of Errors and Method of Least Squares/en-ca/the-theory-of-errors-and-method-of-least-squares/F6492D81-B540-43B8-9EDB-6C5B2EF3D868.htmlF6492D81-B540-43B8-9EDB-6C5B2EF3D868